Patents by Inventor Leslie James Parsons

Leslie James Parsons has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • In-situ production of bitumen
    Patent number: 6050335
    Abstract: A system for in-situ production of bitumen comprises a steam injection well system which comprises a number of lateral sections that traverse the bitumen bearing formation partly above a basal water transition and/or thief zone such that a tip of each lateral section protrudes from the bitumen bearing formation into the basal water transition and/or thief zone.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: April 18, 2000
    Assignee: Shell Oil Company
    Inventor: Leslie James Parsons